Air spring, air suspension and vehicle

Abstract

The utility model discloses an air spring, an air suspension and a vehicle. The air spring comprises a top seat assembly, an air bag assembly and a switch piece. The top seat assembly is connected with the air bag assembly; two first cavities which are independent from each other are arranged in the top seat assembly; a second cavity is formed in the air bag assembly, and the two first cavities communicate with the second cavity; each first cavity is provided with the corresponding switch piece, and the switch pieces are used for controlling connection and disconnection of the first cavities and the second cavities. In this way, connection and disconnection of the two first cavities and the second cavity are controlled through the switch piece, so that the rigidity of the air spring can be adjusted in a multi-stage mode, the large adjusting range of the rigidity of a vehicle body is achieved, and the riding comfort of passengers is improved.

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